Class: Musa::GenerativeGrammar::Implementation::BlockNode Private

Inherits:
Node
  • Object
show all
Defined in:
lib/musa-dsl/generative/generative-grammar.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Node with dynamic content generated by block.

Executes block at generation time to produce content. Block receives parent elements and attributes.

Instance Method Summary collapse

Constructor Details

#initialize(attributes) {|parent, attributes| ... } ⇒ BlockNode

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of BlockNode.

Yields:

  • (parent, attributes) —

    block to generate content



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# File 'lib/musa-dsl/generative/generative-grammar.rb', line 486

def initialize(attributes, &block)
  @attributes = attributes
  @block = block
end

Instance Method Details

#_options(parent: nil, &condition) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/musa-dsl/generative/generative-grammar.rb', line 492

def _options(parent: nil, &condition)
  parent ||= []

  element = @block.call(parent, @attributes)
  element = OptionElement.new(element, @attributes) unless element.is_a?(OptionElement)

  if block_given?
    if yield(parent + [element], @attributes)
      [[element]]
    else
      []
    end
  else
    [[element]]
  end
end